However, Chad's third name, Bertrand, as well as his family name, come from the Celtic region of France called Bretagne, where many indigenous people have a family name starting with either "Le" or "Ar". On top of that, Le Clos is a common family name amongst the natives of Bretagne. It's uncertain who brought this family name to South Africa.
"Le champion olympique Chad Le Clos s'entraîne à Maurice" [Olympic Champion Chad Le Clos Trains in Mauritius] (in French). Le Défi Media Group. 1 February 2013. Archived from the original on 17 July 2014. Retrieved 9 September 2015.
